• CE marking


    CE marking

    Now with updated Declarations of Performance.
    A large selection of our timber connectors are CE certified.

    Find out more

  • Window grating calculator


    Create your own security.

    Our window grating calculator makes it quick and easy to find dimensions, materials and quantities. Here we go ...

    Start calculating

  • History


    Innovating since 1852

    Starting off in 1852 as a bolt forge in the heart of the Sauerland region of Germany, the company now has a range of more than 10,000 products.

    See the whole success story here